rock brake

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rock brake Definition

• (n) any of several small lithophytic ferns of tropical and warm temperate regions
• (n) dwarf deciduous lithophytic ferns
• (n) chiefly lithophytic or epiphytic fern of North America and east Asia

rock brake Synonyms

• American wall fern
• cliff brake
• cliff-brake
• Polypodium virgianum
• rock brake
• rock polypody